Mountain resort image
– Lat/Long: 48.71° N 121.99° W

South Twin Sister
Weather Forecast, United States

Issued: 10 am Sun 19 Jul Local Time
Updates in:
hr min s
Update imminent

Days 1–3 Weather Summary

Mostly dry. Warm (max 30°C on Mon afternoon, min 15°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Warm (max 30°C on Wed afternoon, min 12°C on Fri night). Wind will be generally light.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
clear
clear
some clouds
Cloud base (m)
8950
8800
6050
6200
4100
6400
5050
3500
3450
2950
600
km/h
5
W
5
W
5
ENE
0
N
5
WSW
5
E
5
WSW
5
W
0
ENE
5
W
5
WNW
0
ESE
5
WSW
10
WSW
5
SSE
10
SSW
10
SW
5
S
Weather map
Weather map
Weather map
Weather map
Weather map
Weather map
Snowflake cm
 mm
max °C
19
23
20
26
30
25
28
30
26
27
30
26
27
29
24
21
22
19
min °C
15
22
17
22
29
22
24
30
23
24
29
22
24
28
17
18
21
12
 chill °C
15
22
17
22
29
22
24
30
23
24
29
22
24
28
17
18
21
12
Freezing level m
3850
3950
4200
4250
4350
4300
4450
4600
4600
4400
4500
4350
4300
4200
3950
3550
3500
3600
Sea lvl1000m2000m3000m4000m5000m
81113141616161717151616151513997101416182121202221192121192016131311172319243024263025263024262921202216
Sunrise
5:24
5:26
5:26
5:28
5:28
5:31
Sunset
9:01
9:00
9:00
8:59
8:58
8:57

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South Twin Sister Weather (Days 0-3):

The weather forecast for South Twin Sister is: Mostly dry. Warm (max 30°C on Mon afternoon, min 15°C on Sun morning). Wind will be generally light.

South Twin Sister Weather (Days 3-6):

Mostly dry. Warm (max 30°C on Wed afternoon, min 12°C on Fri night). Wind will be generally light.

This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.

Live conditions reported by 10 closest weather stations

Weather StationTemp.WeatherWindGusts
Cloud
Visibility
Cloud / Visibility
34 km WSW
100m alt.
1 hour ago
23° C
Dry
3
Calm
(3 kph at 207).
8
SHIP7394
38 km WSW
15m alt.
46 minutes ago
- km
41 km SSW
219m alt.
1 hour ago
21° C
clear
Clear
20
Moderate winds from the NW
(20 kph at 320).
16 km
Bellingham Airport
41 km W
219m alt.
2 hours ago
20° C
partially cloudy
Dry and partly cloudy.
6
Light winds from the N
(6 kph at 1).
16 km
Low: broken
43 km WNW
25m alt.
2 hours ago
24° C
Dry
2
Calm
(2 kph at 171).
6
SHIP4064
38 km WSW
15m alt.
3 hours ago
- km
SHIP3558
38 km WSW
3m alt.
3 hours ago
SHIP8463
38 km WSW
15m alt.
3 hours ago
- km
SHIP7772
38 km WSW
15m alt.
2 hours ago
- km
SHIP4294
38 km WSW
15m alt.
2 hours ago
- km

* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.